JPH0447119Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a hand control device for a refueling system suitable for use, for example, in operating a hose elevator of a suspended refueling system.

[Conventional technology]

Generally, for example, a suspended refueling system is equipped with a hose elevator installed at a high place at the refueling station, and the hose elevator includes a rotatably installed hose reel and a hose that rotates the hose reel in forward and reverse directions. The hose reel includes a lifting motor, and a hose having a refueling nozzle at its tip is wound around the hose reel so as to be able to move up and down. In the middle of the hose located at or near the refueling nozzle, there is a hose elevator handle that operates the hose elevator to raise and lower the hose between the standby position approximately 1.8 m from the ground and the refueling position where the vehicle is to be refueled. A switch device is provided.

Conventionally, this type of hand-held switch device includes a switch box whose interior is defined by a wall between an oil passage communicating with a hose and a switch housing chamber, and a switch box located within the switch housing chamber. It is generally composed of a hose lowering switch and a hose raising switch, and a cable inserted through the flow path of the hose to electrically connect the switches to the hose elevator side. The cable installed from the hose into the switchbox is inserted into the switch storage chamber from the oil passage side through a cable insertion hole drilled in the wall of the switchbox, and the signal line of the cable is connected to the hose lowering switch, the hose It is connected to a lift switch or the like by soldering, and a cable holder is fitted into the cable insertion hole via a gasket to prevent oil from entering the switch housing chamber.

[The problem that the idea aims to solve]

By the way, the above-mentioned cable has a structure in which the signal wire, ground wire, etc. that connect the hose elevator side to the hose lowering switch, hose ascending switch, etc., respectively, are covered with a hollow flexible tube.
A gap is formed in the tube so as to communicate with the tube along the longitudinal direction. Therefore, if there is a crack or other flaw in the tube's peripheral wall, the oil in the hose will enter the cable through the flaw, flow through the gap, and damage the cable. As a result of flowing into the switch storage chamber from the tip, there is a drawback that the switches may malfunction or become inoperable.

The present invention was developed in view of the above-mentioned drawbacks of the prior art, and prevents the oil that has entered the cable due to tube damage from entering the electrical component storage chamber. To provide a highly reliable hand control device for a refueling device that can reliably prevent failures.

[Means to solve the problem]

The feature of the means of the present invention configured to solve the above-mentioned problems is that the partition wall of the casing is provided with a cable insertion hole that communicates with the oil passage and the electrical component storage chamber, and the casing insertion hole is closed. A connection board is provided on the picture wall, and the cable on the oil passage side is connected to the electrical component in the electrical component storage chamber via the connection board.

[Effect]

A connection board is provided on the wall to liquid-tightly close the cable insertion hole that communicates with the oil passage and the electrical component housing chamber, and since the cable does not face the electrical component housing chamber, oil that has entered the cable can be prevented. Even if liquid leaks outward from the tip end of the cable, it can be prevented from entering the electrical component storage chamber.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described in detail based on the drawings, taking a hand switch device for a hose elevator as an example.

In the figure, reference numeral 1 denotes a hose that is wound around a hose reel (none of which is shown) of a hose elevator installed at a high place at a gas station, and a pipe joint 2 is provided at the tip of the hose 1. 3 is a vertically rectangular switch box connected to the hose 1 via the pipe joint 2; 4 is a box body that constitutes the switch box 3 together with a lid 6, which will be described later; the box body 4 has a convex side; The outer wall 4A is curved and has a generally arch-shaped cross section, the partition wall 4B is curved in the middle along the outer wall 4A, and the hose 1 is connected to the pipe joint 2, which is located on the upper end side of the box body 4. It is integrally formed with a female joint part 4C that is connected through a pipe joint, and a male joint part 4D that is connected to a refueling nozzle (both not shown) through a pipe joint, and a screw hole is provided in the partition wall 4B. 5 is engraved.

On the other hand, reference numeral 6 denotes a lid that constitutes the switch box 3 together with the box body 4, and the lid 6 has a thick upper end 6A, a lower end 6B, and a middle part 6C, and has thick walls between each part 6A to 6C. is a concave part. A screw insertion hole 7 is formed in the upper end portion 6A, and switch insertion holes 8 and 9 are formed in the lower end portion 6B and the intermediate portion 6C, respectively. The lid body 6 formed as described above has a screw insertion hole 7.
It is fixed to the box body 4 by a set screw 10 screwed into a screw hole 5 from above.

The switchbox 3 of the embodiment is constructed as described above, and inside thereof, the upper end side becomes the inlet 11A communicating with the hose 1 due to the partition wall 4B, and the lower end becomes the outlet 11B communicating with the refueling nozzle. It is defined by an oil passage 11 and a switch housing chamber 12. The painting wall 3B has an oil passage 1 on one side.
A cable insertion hole 13 is formed in which the cable insertion hole 13 is opened at the switch storage chamber 12 and the other side is opened at the switch storage chamber 12. A mounting plate 14 is fixed.

15 is the hose 1 wound on the hose reel
This switch 15 is a hose lowering switch for lowering the engine from the standby position to the refueling position.
Micro switch 15A screwed to 4,
It is roughly composed of a switch rod 15B that is slidably inserted into the switch insertion hole 8 and pushes the contact terminal of the micro switch 15A, and a compression spring 15C that normally biases the switch rod 15B toward the micro switch 15A. An operating string 16 is attached to the base end of the switch rod 15B. On the other hand, 17 is a hose raising switch for raising the hose 1 from the refueling position to the standby position, and the hose raising switch 17 can be slid into the micro switch 17A fixed to the mounting plate 14 and the switch insertion hole 9. The switch rod 17B is inserted through the microswitch 17A and presses the contact terminal of the microswitch 17A, and the compression spring 17C normally biases the switchrod 17B away from the microswitch 17A.

Reference numeral 18 denotes a hollow cylindrical cover made of a flexible material such as rubber, which is tightly fitted to the outside of the switch box 3, and the lower end of the cover 18 has a notch 18A into which the operating string 16 is inserted. A switch position display portion 18B is formed in the center of the flat surface on the side of the lid 6 and bulges out in an annular shape corresponding to the switch rod 17B of the hose lift switch 17.

19 is a cable for electrically connecting the switch box on the hose elevator side and each of the switches 15 and 17, and the cable 19 is a plurality of signal wires twisted together, and is connected to the outer circumferential side of the ground wires 19A, 19B, . . . A flexible tube 19D is inserted into the cable 19, and the middle part of the cable 19 is inserted into the channel 1A of the hose 1, and the distal end side extends into the switchbox 3 through the inlet 11A. ing.

As shown in FIGS. 2 and 3, a holder 20 is provided with a cable insertion hole 20A and a connector accommodating portion 20B, and is inserted into the distal end side of the cable 19. A connection board 21, which will be described later, is inserted into the insertion hole 13.
It is also screwed to the picture wall 4B.

21 is a connection board, one side 2 of the connection board 21
1A has one side connecting pin 2 that penetrates the other side 21B.
2, 22, . . . are implanted, and the other side connecting pins 23, 23, .
is planted, and the connecting pin 2 on the one side and the other side
2, 22, . . . , 23, 23, . . . communicate in pairs. The connection board 21 is located on the side of the switch storage chamber 12 and is fixed to the picture wall integrally with the holder 20, and the cable insertion hole 13 is made liquid-tight by the sealant 24 applied to the outer circumference of the connection board 21. It is sealed.

25 is the signal line etc. of the cable 19 19A, 19
B, . . . and inserted into the one side connection pins 22, 22, .
It is accommodated in the connector accommodating portion 20B. Then, a soft sealant 26 is filled in the connector accommodating portion 20B so as not to impede the movement of the connector 25 in the directions of arrows A and A' to prevent leakage of oil from the tip side of the cable 19. are doing.

On the other hand, 26 is the other side connector located on the switch accommodation chamber 12 side and inserted into the other side connection pins 23, 23, . It is connected to a hose lowering switch 15, a hose raising switch 17, etc. via.

In addition, 29 in the figure is a gasket 3 for liquid-tightly sealing between the cable insertion hole 13 and the cable 19.
0 and 31 are a pair of ring seats that hold the cable 19 in the cable insertion hole 13, and 32 are the pair of ring seats 3.
This is an O-ring inserted between 0 and 31.

The present embodiment is constructed as described above, and by connecting the hose and the refueling nozzle to the female joint 2C and male joint 2D of the box body 2 through pipe joints, the switchbox 1 is connected to the lower end of the hose. Installed. When the refueling nozzle is lowered from the standby position to the refueling position, the operator pulls the operating string 16, thereby closing the hose lowering switch 15 and lowering the hose. On the other hand, when the refueling work is completed, the operator presses the switch position display section 18B from the outside of the cover 18, thereby closing the hose lift switch 17 and raising the hose until the refueling nozzle is at the standby position.

According to the embodiment, the cable insertion hole 13 communicating with the oil passage 11 and the switch storage chamber 12 is liquid-tightly closed by the connection board 21, and the connection board 2
1 to the cable 19 and each switch 15, 17
Since the cables 19 and the like are connected, it is possible to reliably prevent the oil liquid that has entered the cable 19 from entering the switch storage chamber 12.

Also, one side connector 2 connected to cable 19
5 is accommodated in the holder 20 so as to be movable in the directions of arrows A and A', and is connected to the connection pin 2 of the connection board 21.
2, 22, . . . Therefore, even if an automobile or the like moves during refueling and the hose is forcibly pulled and extended beyond the length of the cable 19, the connector 25 will simply separate from the connection board 21, and the soldering means will be removed. The inflow of oil into the switch accommodation chamber due to disconnection accidents and cable disconnections that occurred in the conventional technology used can be completely resolved, and accidents can be quickly dealt with.

In addition, in the embodiment, a hand switch device for a hose elevator of a suspended type oil supply device was used as an example, but it may also be applied to, for example, a continuous fuel supply switch, a hand display device, a hand preset switch, etc., or it can be applied to a fixed type oil supply device. You may. Furthermore, in the embodiment, the switch box 3 has been described as being provided with a hose lowering switch 15 and a hose raising switch 17, but in addition to these switches 15 and 17, other operating means such as a reset switch may be provided. be. Furthermore, although the switchbox 3 has been described as being installed at the lower end of the hose 1 via a pipe joint, the present invention is also applicable to cases where the switchbox 3 is installed in the middle of the hose 1 or integrally with the oil supply nozzle.

[Effect of idea]

According to the present invention configured as detailed above,
The casing insertion hole that communicates with the oil passage in the casing and the electrical component storage chamber is closed with a connection board, and the cables and electrical components such as various switches, preset switches, and handheld indicators are connected through the connection board. Even if the oil in the hose gets into the cable, it can be prevented from flowing into the electrical parts storage chamber, and this is a highly reliable hand control device for the oil supply system that reliably prevents electrical parts from malfunctioning or becoming inoperable. It can be done.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view of a hand switch device for a hose elevator according to an embodiment of the present invention, Fig. 2 is an enlarged cross-sectional view in the direction indicated by the - arrow in Fig. 1, and Fig. 3 is a - arrow FIG. 1...Hose, 3...Switch box, 4B
...Painting wall, 11...Oil passage, 12...Switch housing chamber, 13...Cable insertion hole, 15, 17...
Switch, 19...cable, 21...connection board.

Claims (1)

[Scope of utility model registration request] A hose whose base end is connected to a weighing machine, a refueling nozzle provided at the distal end of the hose, and an oil passage provided on the hose located at or near the refueling nozzle, the interior of which is defined by a partition wall. and an electrical component storage chamber; an electrical component located in the electrical component storage chamber and provided in the casing; In a hand-held control device for a refueling device, which includes a cable inserted into a flow path of a hose, a cable insertion hole communicating with an oil passage and an electrical component storage chamber is provided in the partition wall of the casing, and the cable is inserted into a flow path of a hose. A fuel supply characterized in that a connection board is provided on the partition wall so as to close the insertion chamber, and the cable on the oil passage side and the electrical component in the electrical component storage chamber are connected via the connection board. Hand control device for equipment.